Merge pull request #5 from thumbo/master

Dividing basic solutions from advanced (studydrills)

Python3/ex01-studydrills.py

@@ -0,0 +1,12 @@
+#!/usr/bin/env python3
+
+# ex01: A Good First Program
+
+print("Hello World!")
+print("Hello Again")
+print("I like typing this.")
+print("This is fun.")
+print('Yay! Printing.')
+print("I'd much rather you 'not'.")
+# print('I "said" do not touch this.') 
+print('This is another line!')

Python3/ex01.py

@@ -1,4 +1,4 @@
-#!/bin/python3
+#!/usr/bin/env python3
 
 # ex01: A Good First Program
 
@@ -8,5 +8,4 @@
 print("This is fun.")
 print('Yay! Printing.')
 print("I'd much rather you 'not'.")
-# print('I "said" do not touch this.') 
-print('This is another line!')
+print('I "said" do not touch this.')

Python3/ex02.py

@@ -1,4 +1,4 @@
-#!/bin/python3
+#!/usr/bin/env python3
 
 # ex2: Comments and Pound Characters
 
@@ -10,4 +10,4 @@
 # You can also use a comment to "disable" or comment out a piece of code:
 # print("This won't run.")
 
-print("This will run.")
+print("This will run.")

Python3/ex03-studydrills.py

@@ -0,0 +1,70 @@
+#!/usr/bin/env python3
+
+# ex3: Numbers and Math
+
+# Print "I will now count my chickens:"
+print("I will now count my chickens:")
+
+# Print the number of hens
+print("Hens", 25 + 30 / 6)
+# Print the number of roosters
+print("Roosters, 100 -25 * 3 % 4")
+
+# Print "Now I will count the eggs:"
+print("Now I will count the eggs:")
+
+# number of eggs, Notice that '/' operator returns float value in Python3
+print(3 + 2 + 1 - 5 + 4 % 2 - 1 / 4 + 6)
+
+# Print "Is it true that 3 + 2 < 5 - 7?"
+print("Is it true that 3 + 2 < 5 - 7?")
+
+# Print whether 3+2 is smaller than 5-7(True or False)
+print(3 + 2 < 5 - 7)
+
+# Calculate 3+2 and print the result
+print("What is 3 + 2?", 3 + 2)
+# Calculate 5-7 and print the result
+print("What is 5 - 7?", 5 - 7)
+
+# Print "Oh, that's why it's False."
+print("Oh, that's why it's False.")
+
+# Print "Oh, that's why it's False."
+print("How about some more.")
+
+# Print whether 5 is greater than -2(True or False)
+print("Is it greater?", 5 > -2)
+# Print whether 5 is greater than or equal to -2?(True or False)
+print("Is it greater or equal?", 5 >= -2)
+# Print whether 5 is less than or equal to -2 (True or False)
+print("Is it less or equal?", 5 <= -2)
+
+# Find something you need to calculate and write a new .py file that
+# does it.
+
+# integer
+print(50 * 2)
+print(1/500)
+print(4 * 3 - 1)
+print(3.14 * 2 * 200)
+print(1.0/20)
+
+# The following expressions are more complicated calculations.
+# Ignore them if you haven't learned anything about each type.
+
+# decimal: more accurate than float
+import decimal
+print(decimal.Decimal(9876) + decimal.Decimal("54321.012345678987654321"))
+
+# fraction
+import fractions
+print(fractions.Fraction(1, 3))
+print(fractions.Fraction(4, 6))
+print(3 * fractions.Fraction(1, 3))
+
+# complex
+print(3-4j)
+print(3-4J)
+print(complex(3,-4))
+print(3 + 1J * 3j)

Python3/ex03.py

@@ -1,41 +1,28 @@
-#!/bin/python3
+#!/usr/bin/env python3
 
 # ex3: Numbers and Math
 
-# Print "I will now count my chickens:"
 print("I will now count my chickens:")
 
-# Print the number of hens
 print("Hens", 25 + 30 / 6)
-# Print the number of roosters
-print("Roosters, 100 -25 * 3 % 4")
+print("Roosters", 100 -25 * 3 % 4)
 
-# Print "Now I will count the eggs:"
 print("Now I will count the eggs:")
 
-# number of eggs, Notice that '/' operator returns float value in Python3
 print(3 + 2 + 1 - 5 + 4 % 2 - 1 / 4 + 6)
 
-# Print "Is it true that 3 + 2 < 5 - 7?"
 print("Is it true that 3 + 2 < 5 - 7?")
 
-# Print whether 3+2 is smaller than 5-7(True or False)
 print(3 + 2 < 5 - 7)
 
-# Calculate 3+2 and print the result
 print("What is 3 + 2?", 3 + 2)
-# Calculate 5-7 and print the result
+
 print("What is 5 - 7?", 5 - 7)
 
-# Print "Oh, that's why it's False."
 print("Oh, that's why it's False.")
 
-# Print "Oh, that's why it's False."
 print("How about some more.")
 
-# Print whether 5 is greater than -2(True or False)
 print("Is it greater?", 5 > -2)
-# Print whether 5 is greater than or equal to -2?(True or False)
 print("Is it greater or equal?", 5 >= -2)
-# Print whether 5 is less than or equal to -2 (True or False)
-print("Is it less or equal?", 5 <= -2)
+print("Is it less or equal?", 5 <= -2)

Python3/ex04-studydrills.py

@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+
+# ex4: Variables And Names
+
+# number of cars
+cars = 100
+# space in a car. Can be 4 in Python 3.
+space_in_a_car = 4
+# number of drivers
+drivers = 30
+# number of passengers
+passengers = 90
+# number of cars that are empty(without driver)
+cars_not_driven = cars - drivers
+# number of cars that are driven
+cars_driven = drivers
+# number of cars 
+carpool_capacity = cars_driven * space_in_a_car
+# average number of passengers in each car
+average_passengers_per_car = passengers / cars_driven
+
+print("There are", cars, "cars available.")
+print("There are only", drivers, "drivers available.")
+print("There will be", cars_not_driven, "empty cars today.")
+print("We can transport", carpool_capacity, "people today.")
+print("We have", passengers, "to carpool today.")
+print("We need to put about", average_passengers_per_car, "in each car.")

Python3/ex04.py

@@ -1,27 +1,19 @@
-#!/bin/python3
+#!/usr/bin/env python3
 
 # ex4: Variables And Names
 
-# number of cars
 cars = 100
-# space in a car. Can be 4 in Python 3.
 space_in_a_car = 4.0
-# number of drivers
 drivers = 30
-# number of passengers
 passengers = 90
-# number of cars that are empty(without driver)
 cars_not_driven = cars - drivers
-# number of cars that are driven
 cars_driven = drivers
-# number of cars 
 carpool_capacity = cars_driven * space_in_a_car
-# average number of passengers in each car
 average_passengers_per_car = passengers / cars_driven
 
 print("There are", cars, "cars available.")
 print("There are only", drivers, "drivers available.")
 print("There will be", cars_not_driven, "empty cars today.")
 print("We can transport", carpool_capacity, "people today.")
 print("We have", passengers, "to carpool today.")
-print("We need to put about", average_passengers_per_car, "in each car.")
+print("We need to put about", average_passengers_per_car, "in each car.")

Python3/ex05-studydrills.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+
+# ex5: More Variables and Printing
+
+name = 'Zed A. Shaw'
+age = 35      # not a lie
+height = 74   # inches
+weight = 180  # lbs
+eyes = "Blue"
+teeth = 'White'
+hair = 'Brown'
+
+print("Let's talk about %s" % name)
+print("He's %d inches tall." % height)
+print("He\'s %d pounds heavy." % weight)
+print("He's got %s eyes and %s hair." % (eyes, hair))
+print("Actually that's not too heavy")
+print("His teeth are usually %s depending on the coffee." % teeth)
+
+# this line is tricky, try to get it exactly right
+print('If I add %d, %d and %d I get %d.' % (age, height, weight, age + height + weight))
+
+# try more format characters
+my_greeting = "Hello,\t"
+my_first_name = 'Joseph'
+my_last_name = 'Pan'
+my_age = 24
+# Print 'Hello,\t'my name is Joseph Pan, and I'm 24 years old.
+print("%r my name is %s %s, and I'm %d years old." % (my_greeting, my_first_name, my_last_name, my_age))
+
+# Try to write some variables that convert the inches and pounds to centimeters and kilos.
+inches_per_centimeters = 2.54
+pounds_per_kilo = 0.45359237
+
+print("He's %f centimeters tall." % (height * inches_per_centimeters))
+print("He's %f kilos heavy." % (weight * pounds_per_kilo))

Python3/ex05.py

@@ -1,36 +1,21 @@
-#!/bin/python3
+#!/usr/bin/env python3
 
 # ex5: More Variables and Printing
 
-name = 'Zed A. Shaw'
-age = 35      # not a lie
-height = 74   # inches
-weight = 180  # lbs
-eyes = "Blue"
-teeth = 'White'
-hair = 'Brown'
+my_name = 'Zed A. Shaw'
+my_age = 35      # not a lie
+my_height = 74   # inches
+my_weight = 180  # lbs
+my_eyes = "Blue"
+my_teeth = 'White'
+my_hair = 'Brown'
 
-print("Let's talk about %s" % name)
-print("He's %d inches tall." % height)
-print("He\'s %d pounds heavy." % weight)
-print("He's got %s eyes and %s hair." % (eyes, hair))
+print("Let's talk about %s" % my_name)
+print("He's %d inches tall." % my_height)
+print("He\'s %d pounds heavy." % my_weight)
+print("He's got %s eyes and %s hair." % (my_eyes, my_hair))
 print("Actually that's not too heavy")
-print("His teeth are usually %s depending on the coffee." % teeth)
+print("His teeth are usually %s depending on the coffee." % my_teeth)
 
 # this line is tricky, try to get it exactly right
-print('If I add %d, %d and %d I get %d.' % (age, height, weight, age + height + weight))
-
-# try more format characters
-my_greeting = "Hello,\t"
-my_first_name = 'Joseph'
-my_last_name = 'Pan'
-my_age = 24
-# Print 'Hello,\t'my name is Joseph Pan, and I'm 24 years old.
-print("%rmy name is %s %s, and I'm %d years old." % (my_greeting, my_first_name, my_last_name, my_age))
-
-# Try to write some variables that convert the inches and pounds to centimeters and kilos.
-inches_per_centimeters = 2.54
-pounds_per_kilo = 0.45359237
-
-print("He's %f centimeters tall." % (height * inches_per_centimeters))
-print("He's %f kilos heavy." % (weight * pounds_per_kilo))
+print('If I add %d, %d and %d I get %d.' % (my_age, my_height, my_weight, my_age + my_height + my_weight))

Python3/ex06-studydrills.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+
+# ex6: String and Text
+
+# Assign the string with 10 replacing the formatting character to variable 'x'
+x = "There are %d types of people." % 10
+
+# Assign the string with "binary" to variable 'binary'
+binary = "binary"
+
+# Assign the string with "don't" to variable 'do_not'
+do_not = "don't"
+
+# Assign the string with 'binary' and 'do_not' replacing the
+# formatting character to variable 'y'
+y = "Those who know %s and those who %s." % (binary, do_not)  # Two strings inside of a string
+
+# Print "There are 10 types of people."
+print(x)
+
+# Print "Those who know binary and those who don't."
+print(y)
+
+# Print "I said 'There are 10 types of people.'"
+print("I said %r." % x)  # One string inside of a string
+
+# Print "I also said: 'Those who know binary and those who don't.'."
+print("I also said: '%s'." % y)  # One string inside of a string
+
+# Assign boolean False to variable 'hilarious'
+hilarious = False
+
+# Assign the string with an unevaluated formatting character to 'joke_evaluation'
+joke_evaluation = "Isn't that joke so funny?! %r" 
+
+# Print "Isn't that joke so funny?! False"
+print(joke_evaluation % hilarious)  # One string inside of a string
+
+# Assign string to 'w'
+w = "This is the left side of..."
+
+# Assign string to 'e'
+e = "a string with a right side."
+
+# Print "This is the left side of...a string with a right side."
+print(w + e)  # Concatenate two strings with + operator